Which to use
“láser” and “lastra” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #10,171
- “láser” frequency rank
- #37,186
- “lastra” frequency rank
- 47357
- confusion score
Side-by-Side Comparison
| Feature | láser | lastra |
|---|---|---|
| Definition | Dispositivo que utiliza la emisión inducida para generar un haz de luz coherente tanto espacial como temporalmente. | Piedra plana que sale de la cantera en hojas planas y de poco grueso, a manera de tablas. |
Where the spellings diverge
Shared letters are muted; the letters that actually set láser and lastra apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
láser and lastra form a confusable pair in the Spanish index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 47357, derived from the frequency rank of both members and their visual similarity.
láser is recorded at frequency rank #10,171, classified as anoun, pronounced [ˈlaseɾ]. lastra is at rank #37,186, tagged as anoun, pronounced [ˈlast̪ɾa].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 47357, this pair ranks #120,487 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "láser" and "lastra" be used interchangeably?
Remembering láser vs lastra
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “láser” entry
- Browse more pairs most likely to be confused. Most confusable